25 – 8
WL Circuit Breaker
Function Overview of the Electronic Trip Units
Basic Functions
ETU725
ETU727
ETU745
Parameter sets
Selectable between
parameter set A and B
–
–
–
LCD
LCD, alphanumeric (4-line)
–
–
O
LCD, graphic
–
–
–
Communication
CubicleBUS integrated
–
–
✔
Communication capability via
MODBUS or PROFIBUS
–
–
✔
Metering function
Metering function capability with
Metering Function or
Metering Function PLUS
–
–
✔
Display by LED
Trip unit active
✔
✔
✔
Alarm
✔
✔
✔
ETU error
✔
✔
✔
L trip
✔
✔
✔
S trip
✔
✔
✔
I trip
✔
✔
✔
N trip
–
✔
✔
G trip
–
✔
✔
(only with ground fault module)
G alarm
–
–
✔
(only with ground fault module)
Tripped by extended protection or
protective relay function
–
–
✔
Communication
–
–
✔
Signal contacts with external CubicleBUS modules
(Opto or relay)
Overcurrent warning
–
–
✔
Load shedding OFF/ON
–
–
✔
Early signal of long time trip (200ms)
–
–
✔
Temperature alarm
–
–
✔
Phase unbalance
–
–
✔
Instantaneous trip
–
–
✔
Short-time trip
–
–
✔
Long-time trip
–
–
✔
Neutral conductor trip
–
–
✔
Ground fault protection trip
–
–
✔
(only with ground fault module)
Ground fault alarm
–
–
✔
(only with ground fault module)
Auxiliary relay
–
–
✔
ETU error
–
–
✔
✔
available
–
not available
O
optional
Summary of Contents for WL Series
Page 64: ...7 2 Horizontalanschlüsse 0733_nu top view Horizontal connectors ...
Page 65: ...7 3 Vertikalanschlüsse 0734_nu top view rear view Rear vertical connectors ...
Page 66: ...7 4 Frontanschlüsse 0736_nu front view top view Front connectors ...
Page 68: ...7 6 7 2 Baugröße II Festeinbau 0494 3_nu 7 2 Frame size II fixed mounted version ...
Page 69: ...7 7 C class always 0494 5_nu top view rear view ...
Page 70: ...7 8 0738_nu LH side view front view ...
Page 72: ...7 10 0495 2_nu top view top view ...
Page 73: ...7 11 0495 3_nu top view rear view ...
Page 74: ...7 12 0739_nu LH side view front view ...
Page 76: ...7 14 Baugröße II III 0496_nu Frame size II III ...
Page 77: ...7 15 7 5 Baugröße I Einschubausführung 0745_nu 7 5 Frame size I draw out version ...
Page 78: ...7 16 0746_nu rear view top view ...
Page 79: ...7 17 0747_nu bottom view ...
Page 80: ...7 18 0748_nu ...
Page 81: ...7 19 0749_nu ...
Page 82: ...7 20 7 6 Baugröße II Einschubausführung 0490 1_ul 7 6 Frame size II draw out version ...
Page 86: ...7 24 7 7 Baugröße III Einschubausführung 7 7 Frame size III draw out version ...
Page 87: ...7 25 ...
Page 88: ...7 26 ...
Page 111: ...9 11 I Auslösung Erdschlussauslösung I tripping Ground fault tripping ...
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